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. 2017 Nov-Dec:46:85-90.
doi: 10.1016/j.clinimag.2017.07.008. Epub 2017 Jul 18.

Relationship between diminution of small pulmonary vessels and emphysema in chronic obstructive pulmonary disease

Shuko Mashimo  1 , Shotaro Chubachi  2 , Akihiro Tsutsumi  1 , Naofumi Kameyama  1 , Mamoru Sasaki  1 , Masahiro Jinzaki  3 , Hidetoshi Nakamura  4 , Koichiro Asano  5 , John J Reilly Jr  6 , Tomoko Betsuyaku  1
Affiliations

Relationship between diminution of small pulmonary vessels and emphysema in chronic obstructive pulmonary disease

Shuko Mashimo et al. Clin Imaging. 2017 Nov-Dec.

Abstract

Objectives: To investigate the relationship between small pulmonary vessels and extent of emphysema on CT in individual lungs with chronic obstructive pulmonary disease (COPD).

Methods: Forty-nine patients were included. The percentage of cross-sectional area of vessels <5mm2 (%CSA <5) and extent of emphysema were assessed.

Results: Less than half of the COPD patients demonstrated an inverse correlation between %CSA <5 and percentage of low attenuation area (LAA%). In the remaining patients, %CSA <5 was homogeneously distributed.

Conclusion: Not all patients with COPD demonstrated an inverse correlation of the distributions between %CSA <5 and LAA% in individual lungs.

Keywords: COPD; CT scan cross-sectional area; Emphysema; Small pulmonary vessel.

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